Investigators found a pipefitter working on a steam line was exposed to asbestos-containing material in its insulation. OSHA said in other violations, respiratory protection was not worn by workers exposed to asbestos-containing material, and the work was not conducted within a regulated area. Additionally, access to the area where asbestos work was conducted was not limited to authorized persons, and the employer did not perform monitoring to determine accurately the airborne concentrations of asbestos to which workers were potentially exposed.